Contents

STBC03

2/34

DocID029927 Rev 2

Contents

1

Application schematic .................................................................... 6

2

Pin configuration (top through view) ............................................. 7

3

Maximum ratings ............................................................................. 9

4

Electrical characteristics .............................................................. 10

5

Typical performance characteristics ........................................... 14

6

Functional pin description............................................................ 18

6.1

GND, AGND.................................................................................... 18

6.2

NTC................................................................................................. 18

6.3

ISET and IPRE................................................................................ 18

6.4

BATMS, BATMS_EN ...................................................................... 18

6.5

BATSNS, BATSNSFV ..................................................................... 19

6.6

BAT ................................................................................................. 19

6.7

IN .................................................................................................... 19

6.9

SYS ................................................................................................. 20

6.10

LDO................................................................................................. 20

6.11

WAKE-UP ....................................................................................... 20

6.13

CHG ................................................................................................ 21

6.14

CEN ................................................................................................ 21

6.15

SD ................................................................................................... 22

6.16

SW1_OA, SW1_OB, SW1_I, SW2_OA, SW2_OB, SW2_I ............. 22

6.17

SW_SEL1 and SW_SEL2 ............................................................... 22

7

Block diagram................................................................................ 23

8

Operation description ................................................................... 24

8.1

Power-on......................................................................................... 24

8.2

Battery charger................................................................................ 24

8.3

Battery temperature monitoring....................................................... 28

8.4

Battery overcharge protection ......................................................... 28

8.5

Battery over-discharge protection ................................................... 28

8.6

Battery discharge overcurrent protection ........................................ 28

8.7

Battery fault protection .................................................................... 28

8.8

Floating voltage adjustment ............................................................ 29

8.9

Input overcurrent protection ............................................................ 29